black powder signal cannon View cart “Turn of the century fire helmet” has been added to your cart.$995.00Early 20th century black powder signal cannon. 14” long and 8” high black powder signal cannon quantity Add to cart Add to Wishlist Categories: Accessories, AmericanaRelated products signed Japanese green glass float $495.00 Add to cart Cast solid bronze Native American $895.00 Add to cart Marble and Bronze Tazza $1,850.00 Add to cart Turn of the century fire helmet $995.00 Add to cart